Cover for a rifle sight



FIG. 1 is a perspective view of a cover for a rifle sight embodying my new design;

FIG. 2 is a side elevational view thereof opposite side being a mirror image;

FIG. 3 is a front view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a rear view thereof. 

The ornamental design for a cover for a rifle sight, as shown and described. 